前門內板后下角開裂的解決方法
代建文，黃敏鶇，謝 雙，楊勝統 （上汽通用五菱汽車股份有限公司，廣西柳州 545007）
摘要：介紹了汽車前門內板鈑金零件在成形過程中后下角產生開裂的問題，分析了開裂產生的原因，提出通過研配管理面間隙、調整工藝補充面、增加零件內部中間刺破刀等措施，改善了零件成形穩定性， 滿足了大批量生產的需求。
關鍵詞：前門內板；開裂；模具；管理面間隙；工藝補充面
中圖分類號：TG386.2 文獻標識碼：B
文章編號：1001-2168（2021）06-0037-04 DOI：10.16787/j.cnki.1001-2168.dmi.2021.06.007
Solution to cracking at back lower corner of front door inner panel
DAI Jian-wen, HUANG Min-dong, XIE Shuang, YANG Sheng-tong (SAIC-GM-Wuling Automobile Co., Ltd., Liuzhou, Guangxi 545007, China)
Abstract: The cracking occurred at the back lower corner of the front door inner panel in the forming process, the causes of cracking were analyzed. By grinding and managing the face clearance, adjusting the process supplement surface, and increasing the parts inside the middle waste knife, it made the parts forming stably, which met the needs of the mass production.
Key words: front door inner panel; cracking; die; face clearance; process supplement surface